MEDIUM
5th CBSE
IMPORTANT
Earn 100

In the following diagrams of pulley system, label the fixed and movable pulleys.
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Important Questions on Energy and Work

EASY
5th CBSE
IMPORTANT
Frank PRIMARY SCIENCE.>Chapter 11 - Energy and Work>Let Us Solve>Q 3
A block of wood floats on water.
EASY
5th CBSE
IMPORTANT
Frank PRIMARY SCIENCE.>Chapter 11 - Energy and Work>Let Us Solve>Q 3
When an object is immersed in a liquid it gains weight.
EASY
5th CBSE
IMPORTANT
Frank PRIMARY SCIENCE.>Chapter 11 - Energy and Work>Let Us Solve>Q 3
The density of sea-water is less than that of fresh water.
EASY
5th CBSE
IMPORTANT
Frank PRIMARY SCIENCE.>Chapter 11 - Energy and Work>Let Us Solve>Q 3
The upward force exerted by a liquid is called buoyant force.
EASY
5th CBSE
IMPORTANT
Frank PRIMARY SCIENCE.>Chapter 11 - Energy and Work>Let Us Solve>Q 3
An object that floats in water will sink in mercury.
EASY
5th CBSE
IMPORTANT
Frank PRIMARY SCIENCE.>Chapter 11 - Energy and Work>Let Us Solve>Q 3
A crow-bar is an example of a first-class lever.
EASY
5th CBSE
IMPORTANT
Frank PRIMARY SCIENCE.>Chapter 11 - Energy and Work>Let Us Solve>Q 3
An inclined plane makes work easier for us.
EASY
5th CBSE
IMPORTANT
Frank PRIMARY SCIENCE.>Chapter 11 - Energy and Work>Let Us Solve>Q 3
It is easier to get a screw with a bigger pitch into a piece of wood than a screw with a smaller pitch.